/*
 * Copyright (C) 2021 Huawei Device Co., Ltd.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.imagelettericon.util;

import ohos.app.Context;
import ohos.global.resource.NotExistException;
import ohos.media.image.ImageSource;
import ohos.media.image.PixelMap;

import java.io.IOException;
import java.io.InputStream;

/**
 * 获取 Bitmap
 *
 * @since 2021-05-27
 */
public class PixelMapUtils {
    private PixelMapUtils() {
    }

    /**
     * 根据资源文件获取位图
     *
     * @param context 上下文
     * @param resId 资源Id
     * @return 位图
     */
    public static PixelMap getPixelMapFromResource(Context context, int resId) {
        InputStream drawableInputStream = null;
        PixelMap pixelmap = null;
        ImageSource.DecodingOptions decodingOptions = new ImageSource.DecodingOptions();
        try {
            drawableInputStream = context.getResourceManager().getResource(resId);
            ImageSource.SourceOptions sourceOptions = new ImageSource.SourceOptions();
            sourceOptions.formatHint = "image/png";
            ImageSource imageSource = ImageSource.create(drawableInputStream, sourceOptions);
            pixelmap = imageSource.createPixelmap(decodingOptions);
            return pixelmap;
        } catch (IOException | NotExistException e) {
            return pixelmap;
        } finally {
            try {
                if (drawableInputStream != null) {
                    drawableInputStream.close();
                }
            } catch (IOException e) {
                return pixelmap;
            }
        }
    }
}
